Sediment cores from Twin Butte Lake, Yellowstone National Park, being analyzed in the laboratory
Detailed Description
Sediment cores from Twin Butte Lake, Yellowstone National Park, being analyzed in the laboratory. (a) Photo of a freshly split core that exhibits a transition in lake productivity (grey sediment on bottom to dark organic rich sediment on top). One half of the core is scanned for multiple types of data and sampled while the other half of the core is archived. (b) Photo of a lake core being scanned for high-resolution photos at the USGS Pacific and Marine Coastal Center Core Lab. Photos taken by L. Harrison in September 2022.
Sources/Usage
Public Domain.